This page lists 11 drivetrain parts for the 2015 Audi S3, across 4 part types, covering the 2.0L L4 Turbocharged engine. Every part shows its brand, manufacturer part number and fitment notes.
On the 2015 Audi S3, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware. 10 parts of the 11 listed are CV Joint Boot (5 parts), CV Joint (3 parts) and AWD Coupling Fluid (2 parts). The other 1 part type covers the remaining 1 part.
Every part on this page is matched to the 2.0L L4 Turbocharged — the only engine offered in the 2015 Audi S3.
The most listed brands for 2015 Audi S3 drivetrain parts are GKN (5 parts), VAICO (4 parts) and REIN (1 part), plus 1 more brand.
1 part on this 2015 Audi S3 page carries a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — GKN 304936 (CV Joint Boot). Click any part number to see every vehicle that part fits.
AWD Coupling Fluid
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| REIN | FLDF003 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Haldex850 ml | View on Amazon |
| VAICO | V600450 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Differential Oil, 850 ML | View on Amazon |
This table covers the AWD Coupling fluids. Typical signs include discolored fluid, a burnt smell, or a level that keeps dropping. Use only the specification in the notes — the tables group grades because they are not interchangeable.
2 AWD Coupling Fluid parts for the 2015 Audi S3 come from 2 brands — REIN and VAICO.
This group includes REIN FLDF003 and VAICO V600450.
AWD Coupling Oil Filter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VAICO | V106662 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the AWD Coupling Oil filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for.
This group shows a single part: VAICO V106662.
CV Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN | 305448 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Pre-lubricatedThermosplastic Elastomer (TPE) | View on Amazon |
| MARELLI | TOJ0312 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | FrontTo 08/2016 | View on Amazon |
| VAICO | V106914 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Fits Rear Outer | View on Amazon |
This table covers the constant-velocity joints at each end of a drive axle.
3 CV Joint parts for the 2015 Audi S3 come from 3 brands — GKN, MARELLI and VAICO.
Part numbers include GKN 305448, MARELLI TOJ0312 and VAICO V106914.
CV Joint Boot
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GKN Popular | 304936 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Does Not contain CapThermoplastic Elastomer | View on Amazon |
| GKN | 305967 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Length: 123 mmThermoplastic Elastomer | View on Amazon |
| GKN | 306131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Thermoplastic ElastomerThermosplastic Elastomer (TPE) | View on Amazon |
| GKN | 305882 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | OUTER Diameter 1.102 InThermoplastic Elastomer | View on Amazon |
| VAICO | V105634 | 🇺🇸 US | Rear OuterGrade: AM | View on Amazon |
This table covers the boots that keep grease in a CV joint. Typical signs include a split boot, grease flung around the joint, or a click once grit is inside. A boot caught early is a kit. Once the joint has clicked, the joint itself is usually worn.
5 CV Joint Boot parts for the 2015 Audi S3 come from 2 brands — GKN and VAICO. The "Popular" part is GKN 304936.
Listed part numbers: GKN 304936, GKN 305967 and GKN 306131, plus the other parts above.
Buying Drivetrain Parts for a 2015 Audi S3
On this vehicle, the drivetrain system moves power from transmission to wheels through axles, CV joints, driveshafts, differentials and wheel-end hardware.
- Confirm you have the 2.0L L4 Turbocharged engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: CV Joint Boot and CV Joint .
Frequently Asked Questions
How many drivetrain parts fit the 2015 Audi S3?
Our catalog currently lists 11 drivetrain parts for the 2015 Audi S3 across 4 subcategories and 4 brands, covering the 2.0L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of drivetrain problems on a 2015 Audi S3?
Common symptoms include clicking in tight turns, a clunk when shifting between drive and reverse, vibration that builds with speed, or gear oil on the inside of a wheel. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace the differential or transfer-case fluid with any axle or seal job while everything is already open.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2015 Audi S3 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2015 Audi S3?
Every part on this page is matched to the 2.0L L4 Turbocharged engine. Then a torn CV boot caught early is a cheap boot kit; caught late it is a whole axle — inspect before deciding which to buy. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2015 Audi S3
Drivetrain Parts for Other Audi S3 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.